CVE-2026-104459

EUVD-2026-91470
YesWiki before 4.6.7 contains a server-side request forgery vulnerability in WebfingerService that allows unauthenticated attackers to trigger HTTPS requests to internal hosts. Attackers can POST a crafted actor_handle with a numeric host and port to the abonnements view to probe internal HTTPS services and ports.
SSRF
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
VulnCheckCNA
6.5 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:L
Base Score
CVSS 3.x
EPSS Score
Percentile: Unknown
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
VendorProductVersionSource
yeswikiyeswiki
𝑥
< 4.6.7
CNA
Common Weakness Enumeration
References
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-x4mq-qxvc-g82j
https://www.vulncheck.com/advisories/yeswiki-before-4.6.7-ssrf-via-activitypub-webfinger-actor-handle
https://github.com/YesWiki/yeswiki/security/advisories/GHSA-x4mq-qxvc-g82j